Modeling hypertrophic cardiomyopathy with human cardiomyocytes derived from induced pluripotent stem cells

Jiangtao Li1, Xin Feng1, Xiang Wei2

  • 1Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.

Insights

Induced pluripotent stem cells (iPSCs) offer a way to study hypertrophic cardiomyopathy (HCM) by creating patient-specific heart cells (iPSC-CMs). These models are advancing our understanding of HCM and aiding drug development.

Area of Science:

  • Cardiovascular Research
  • Stem Cell Biology
  • Genetics

Background:

  • Studying hypertrophic cardiomyopathy (HCM) pathogenesis is challenging due to limited early-stage myocardial tissue.
  • Induced pluripotent stem cells (iPSCs) provide a solution by enabling in vitro differentiation into patient-derived cardiomyocytes (iPSC-CMs).

Purpose of the Study:

  • To review current approaches for establishing iPSC models for HCM research.
  • To summarize the application of genome editing techniques in iPSC-based HCM models.
  • To discuss methods for maturing iPSC-CMs and their application in studying HCM.

Main Methods:

  • Establishment of patient-derived iPSC lines.
  • Differentiation of iPSCs into cardiomyocytes (iPSC-CMs).
  • Application of genome editing techniques.
  • Maturation strategies for iPSC-CMs (e.g., prolonged culture, mechanical/electrical stimulation).
  • Assessment of cellular morphology, contractility, electrophysiology, calcium handling, mitochondrial function, and metabolism.

Main Results:

  • Numerous iPSC-CM models of HCM have been established globally.
  • Diverse measurement techniques are employed to characterize these models.
  • Preliminary findings suggest iPSC-CMs provide valuable insights into HCM pathogenesis.
  • These models show promise for drug development and safety testing.

Conclusions:

  • iPSC-CMs represent a powerful tool for investigating hypertrophic cardiomyopathy.
  • Despite immaturity, iPSC-CMs offer significant insights into disease mechanisms.
  • This technology facilitates drug discovery and safety evaluation for HCM treatments.